Scientists may have just pushed back the timeline for when our ancestors first started walking upright. A new study suggests ...

Human history features a pivotal moment when four-legged beings stood upright on two legs. Scholars regard this shift as the ...

They drew with crayons, possibly fed on maggots and maybe even kissed us: Forty millenniums later, our ancient human cousins ...

Scientists may have cracked the case of whether a seven-million-year-old fossil could walk upright. A new study found strong ...

New study of 7-million-year-old fossils from Chad proves Sahelanthropus tchadensis walked upright while still climbing trees.

The pelvis is often called the keystone of upright movement. It helps explain how human ancestors left life on all fours ...

A new analysis of these primordial bones offers evidence that Sahelanthropus was our first known ancestor to regularly walk on two feet, a sign that bipedalism evolved early in our lineage.

Using 3D technology and other methods, the team identified Sahelanthropus’s femoral tubercle, which is the point of ...

A controversial hominid that lived 7 million years ago may have walked on two legs after all, according to a new analysis of ...

A fossil belonging to an ancient hominin that lived seven million years ago bears the hallmarks of bipedalism, according to a ...

Learn how detailed 3D analysis uncovered evidence that upright walking emerged near the very start of the human lineage.

In recent decades, scientists have debated whether a seven-million-year-old fossil was bipedal—a trait that would make it the oldest human ancestor. A ...